--- ceph-16.2.4/src/common/Formatter.cc.orig	2021-07-07 09:32:25.513818420 -0400
+++ ceph-16.2.4/src/common/Formatter.cc	2021-07-07 09:44:42.007373294 -0400
@@ -21,6 +21,7 @@
 #include <fmt/format.h>
 #include <set>
 #include <limits>
+#include <algorithm>
 
 // -----------------------
 namespace ceph {